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प्रश्न
Answer the following in a word or two or in a sentence.
Why is difficult for a pen to leave a mark on a highly smooth plastic sheet?
उत्तर
Because the smooth surface has very less friction.
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संबंधित प्रश्न
Fill in the blank.
We use ball bearings to .................. the friction.
Answer the following.
What do you understand by a force?
Answer the following in a word or two or in a sentence.
Which type of force acts on a string pulled from both ends?
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
Answer the following in short.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
Answer the following in short.
List the various states of matter that offer frictional force?
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
